Seachem Tidal 75 Matrix Replacement Bio Media Keep your Seachem Tidal 75 filter performing at its best with genuine Seachem Tidal 75 Matrix Replacement Bio Media. Designed specifically for the Tidal 75 hang-on-back filter, this premium biological filtration media provides an enormous surface area for beneficial bacteria, helping maintain a healthy, stable aquarium by naturally reducing ammonia, nitrite, and nitrate. Matrix features a highly porous structure that supports both aerobic and anaerobic bacteria, delivering superior biological filtration compared to traditional bio-balls or ceramic rings. Unlike disposable filter media, Matrix is inert, long-lasting, and only requires occasional rinsing in aquarium water to remove debris. Pre-bagged for convenience, this replacement media fits perfectly into the Seachem Tidal 75 filter basket, making maintenance quick and mess-free. Features Genuine Seachem replacement Matrix media for the Tidal 75 filter Provides exceptional biological filtration Helps control ammonia, nitrite, and nitrate Highly porous media offers over 700 m² of surface area per liter Supports both aerobic and anaerobic beneficial bacteria Long-lasting and does not require replacement under normal use Safe for freshwater and marine aquariums Convenient pre-bagged design for easy installation Maintain crystal-clear water and a thriving aquatic environment with Seachem Tidal 75 Matrix—the trusted biological filtration media for healthier fish and cleaner aquariums.